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1 Primary & Middle School Mathematics1–9 年级在线 2 High School Mathematics10–12 年级在线 3 University Mathematics — Year 1本科一年级在线 4 University Mathematics — Year 2本科二年级在线 5 University Mathematics — Year 3本科三年级在线

1 Primary & Middle School Physics1–9 年级在线 2 High School Physics10–12 年级在线 3 University Physics — Year 1本科一年级在线 4 University Physics — Year 2本科二年级在线 5 University Physics — Year 3本科三年级在线

1 School Chemistry — Grades 1 to 121–12 年级在线 2 University Chemistry — Year 1本科一年级在线 3 University Chemistry — Year 2本科二年级在线 4 University Chemistry — Year 3本科三年级在线

1 Primary & Middle School Biology1–9 年级在线 2 High School Biology10–12 年级在线 3 University Biology — Year 1本科一年级在线 4 University Biology — Year 2本科二年级在线 5 University Biology — Year 3本科三年级在线

1 Primary & Middle School Earth and Space Sciences1–9 年级在线 2 High School Earth and Space Sciences10–12 年级在线 3 University Earth and Space Sciences — Year 1本科一年级在线 4 University Earth and Space Sciences — Year 2本科二年级在线 5 University Earth and Space Sciences — Year 3本科三年级在线

1 Markets I: The Ecosystem and Exchange-Traded Markets市场在线 2 Markets II: Rates, FX and Credit市场在线 3 Markets III: Commodities, Energy and Crypto市场在线 4 Quantitative Methods方法在线 5 Derivatives and Volatility衍生品在线 6 Rates, Credit, XVA and Risk利率、信用与风险在线 7 Research Craft: Predictors, Backtests, Measurement, Portfolios研究在线 8 Strategies I: Equities and Futures策略在线 9 Strategies II: Volatility, Relative Value, Macro and the Bank Desks策略在线 10 Microstructure and Execution交易执行在线 11 Market Making and High-Frequency Trading做市在线 12 Machine Learning for Markets机器学习在线 13 Low-Latency Software技术在线 14 Networks, Hardware and Trading Infrastructure技术在线 15 Research, Data and Risk Platforms技术在线 16 The Desk and the Firm公司运营在线 17 The Industry: Firms, Roles and Careers职业发展在线 18 Interviews I: Maths, Probability and Speed职业发展在线 19 Interviews II: Markets, Trading Games and the Final Round职业发展在线 20 Interviews III: Code职业发展在线

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Earth and Space Sciences · 术语表

什么是 Rigid plate？

Definition 13.1 High School Earth and Space Sciences · 第 13 章 — Plates and Their Motions

A rigid plate is a piece of lithosphere that moves as a single block: the distances between points on it do not change, and its deformation is gathered in narrow zones along its boundaries.

A rigid plate on a sphere turns about an axis through the centre of the Earth. Points near the rotation pole move slowly, along small circles; points 90 from the pole move fastest (arrows: speeds to scale). — A rigid plate on a sphere turns about an axis through the centre of the Earth. Points near the rotation pole move slowly, along small circles; points $90{}^{\circ}$ from the pole move fastest (arrows: speeds to scale).

The velocities of points inside 16 plates, computed from their published rotation poles, in a frame in which the lithosphere as a whole does not turn. The Pacific, Nazca, Cocos, Australian and Indian plates move fastest; the Eurasian, North and South American and Antarctic plates slowly. Red arrow: the Pacific plate at Mauna Kea. Rotation poles: Argus, Gordon and DeMets (2011); plate boundaries: Bird (2003); land: Natural Earth.

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Definition 12.1 University Earth and Space Sciences — Year 1 · 第 12 章 — Plate Kinematics on a Sphere

A rigid plate is a region of the lithosphere whose interior does not deform measurably: the distance between any two of its points stays constant. The relative motion of two plates is taken up along their common boundary, a narrow zone of faults, earthquakes and volcanoes.

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